Insecticide composition.



UNITED STATES PATENT OFFICE.

ALFRED s. HALLANDYOF 'BUir'rALo, NEW YORK, ASSIGNOR TO NIAGARA SPRAYER COMPANY, OFIMIDDLEPORT, NEW YORK.

INSECTICIDE COMPOSITION.

No Drawing.

To all whom it may concern Be it known that I, ALFRED S. I'IALLAND, a subject of the King of Denmark, resid-. ing at Bulfalo,'in the county of Erie and State of New York, have invented certain new and useful Improvements in Insecticide Compositions; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to insecticides and fungicides, and the process of making the same; and it has for its chief object the production of a simple and etlica'c-ious composition which may be readily and quickly applied in the form of a spray to trees, plants, shrubs, and vines, without danger of injuring the foliage or fruit thereof.

Other objects of the invention will become apparent upon a complete disclosure thereof.

My compound or composition comprises the reaction. product obtained by fusing t0- gether sulfur and sodium carbonate (soda ash which is capable of being dissolved in water.

In the preparation of the compound or composition, I take preferably equal, or approximately equal quantities, of sulfur and sodium carbonate and thoroughly mix them together. The mixture is then-placed in a suitable retort or reaction vessel and subjected to a temperature not exceeding 400 degrees centigrade. I have found in practice that reaction begins slowly at about 200 degrees cent, and is completed at about 250 degrees cent. At about this temperature the reaction will be accomplished under the evolution of carbonic acid gas, causing the mass to boil, and as soon as the gas evolution ceases the process is completed. The mass is then removed from the reaction vessel, and when cooled becomes a hard mass of, a greenish yellowv color, consisting of a mixture of sodium polysultids and sodium thiosulfate, readily soluble in water. i

The quantity of sulfur and sodium earbonate may be slightly varied without causing any radical change in the character of the substance or its insecticide or fungicidal value, for instance, fifty-two parts of sulfur to-fortyeight parts of sodium carbonate may be used, or forty-eight parts of the former to fifty-two parts of the latter, the.

Specification of Letters Patent. Application filed March 2,1912. Serial No; 681,303.

Patented Nov. 1 2, 1912.

In use, the granular mixture is dissolved in. water and sprayed upon the trees, plai'its, etc, which it is desired to protect from insects, worms, and other vermin, at certain times of the year, the quantity of water per pound of mixture varying according to the character of the tree or plant, and the advanced condition of the foliage, bloom, or.

fruit.

to be understood as limiting myself to sodium carbonate as one of the ingredients of the compound, as I may substitute caustic soda for the sodium carbonate, or use part caustic soda and part sodium carbonate, using 0.75 lb. caustic soda (100%) for. each 1 lb. soda substituted.

I am aware that sodium carbonate and sulfur have been fused together in different proportions, for the production of soda liver of sulfur which process I disclaim. The expression in equal parts employed in the appended elaimsmeans that the variation from exactly equal parts does not exceed 48 parts of either to 52 parts of the other. \Vhen any considerable excess of sulfur, over this proportion is used, there will be insoluble sulfur remaining'in the same, while if more sodium carbonate is used it will be left unacted upon, and will therebylessen the amount of soluble sulfur in the product. It will therefore be seen that by my process, I produce a product which has a maximum amount of soluble sulfur.

Having thus described my invention, what I claim is:

1. The process of n'laking an insecticide compound which comprises melting togetl'ier equal parts of sulfur and sodium carbonate and allowing the reaction products to cool.

2. The process of making an insecticide compound which comprises melting together at 200 to 400 degrees C. equal parts of. sulfur and sodium carbonate and allowing the reaction products to cool.

3. The process of making an insecticide In practising my invention, I do not wish compound which comprises melting together compl tely soluble in water, and containing at about 250 degrees C. equal. parts of sula maximum quantity of soluble sulfurr 1'0 fur and sodium carbonate and, allowing the In testimony whereof I aflix my signature, react-ion products 'to coolQ in the presence of two witnesses. 4. The herein described 'productwhich ALFRED SL. HALLAND. may be produced by melting together equa'l ,Witnesses: parts of sodium carbonate and sulfur, said Cine-F. EWING, product being a greenish'yellow solid mass, H. E. CABTLE.

Copies of this patent maybe obtained forflve' cents each, by addressing the Commissioner of Patents, i

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